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Finding the Fourth Proportional to 168,315.80, 252,036.30 and 133,032.20

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Solution

The fourth proportional to 168,315.80, 252,036.30 and 133,032.20 is: 199,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,315.80 : 252,036.30 = 133,032.20 : x
  2. Step 2: Convert to fraction form
    168,315.80/252,036.30 = 133,032.20/x
  3. Step 3: Cross multiply
    168,315.80x = 252,036.30 × 133,032.20
  4. Step 4: Simplify right side
    168,315.80x = 33,528,943,468.86
  5. Step 5: Solve for x
    x = 33,528,943,468.86/168,315.80
  6. Step 6: Final answer
    x = 199,202.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.